为什么通知栏不起作用？

发布于 2024-11-03 00:12:31 字数 1805 浏览 1 评论 0原文

我在我的应用程序中使用 primefaces 通知栏。我希望它在用户登录并重定向到名为 main.xhml 的页面时出现我正在尝试这样做，但我不知道为什么我不能让它出现。

这是一个位于托管 bean 中的方法，当单击名为 login.xhtml 的页面上的登录按钮时，该方法会执行重定向：

@ManagedBean
@RequestScoped
public class SecurityController {

    @EJB
    private IAuthentificationEJB authentificationEJB;

    public String logIn() {
            if (authentificationEJB.saveUserState(email, password)) {
                // Pass a parameter in ussing the URL.(The notification bar will
                // read this parameter)
                return "main.xhtml?faces-redirect=true&login=1";
            } else {
                return null;
            }
        }

这是用户在名为 login.xhtml 的页面上单击登录的按钮

<h:commandButton value="Login" action="#{securityController.logIn()}"/>

这是其中的页面用户登录时到达（main.xhtml）：

<ui:composition template="WEB-INF/templates/BasicTemplate.xhtml">

    <ui:define name="mainForm">

        <h2>The main page</h2>
        <!-- Why this dont work? -->
        <script type="text/javascript">
          jQuery(function() {
          topBar.show()
           });
         </script>
        <!-- It is possible to change font -->
        <p:notificationBar id="notbar" position="top" widgetVar="topBar" styleClass="top" rendered="#{param.login == '1'}">
            <h:outputText value="Welcome, you are now logged in!"
                style="color:#FFCC00;font-size:36px;" />
        </p:notificationBar>

    </ui:define>
   </ui:composition>

在URL中我可以看到login=1，但是当用户到达main.xhtml时，通知栏不会出现。

我怎样才能让它出现？另外，你知道如何让它在3秒后以淡入淡出的效果消失吗？

原文

I use primefaces notification Bar for my app. I want it to appear just when an user logs in and gets redirected to a page called main.xhml
I am trying to do it but i don't know why i cant make it appear.

This is a method that is located in a managed bean that does the redirect when clicked the login button at a page called login.xhtml:

@ManagedBean
@RequestScoped
public class SecurityController {

    @EJB
    private IAuthentificationEJB authentificationEJB;

    public String logIn() {
            if (authentificationEJB.saveUserState(email, password)) {
                // Pass a parameter in ussing the URL.(The notification bar will
                // read this parameter)
                return "main.xhtml?faces-redirect=true&login=1";
            } else {
                return null;
            }
        }

Here is the button that the users click to login at a page called login.xhtml

<h:commandButton value="Login" action="#{securityController.logIn()}"/>

Here is the page where the users arrive when get loged in(main.xhtml):

<ui:composition template="WEB-INF/templates/BasicTemplate.xhtml">

    <ui:define name="mainForm">

        <h2>The main page</h2>
        <!-- Why this dont work? -->
        <script type="text/javascript">
          jQuery(function() {
          topBar.show()
           });
         </script>
        <!-- It is possible to change font -->
        <p:notificationBar id="notbar" position="top" widgetVar="topBar" styleClass="top" rendered="#{param.login == '1'}">
            <h:outputText value="Welcome, you are now logged in!"
                style="color:#FFCC00;font-size:36px;" />
        </p:notificationBar>

    </ui:define>
   </ui:composition>

In the URL i can see login=1, but when the user arrives to main.xhtml the notification bar does not appear.

How can i make it appear?
Also, do you know how can i make it disappear with a fade effect after 3 seconds?

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